Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-8abb68ad-12ae-11f0-8aae-000d3a57b64a

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

8a4abe86

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-5ec5b1ae-aaa1-4680-9247-5b45c6a59891

Comm: tcp://127.0.0.1:37871	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:44951	Total threads: 1
Dashboard: http://127.0.0.1:34671/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:43053
Local directory: /tmp/dask-scratch-space/worker-00d7hyca

Worker: 1

Comm: tcp://127.0.0.1:43525	Total threads: 1
Dashboard: http://127.0.0.1:46053/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:32831
Local directory: /tmp/dask-scratch-space/worker-ia2hrlt0

Worker: 2

Comm: tcp://127.0.0.1:33339	Total threads: 1
Dashboard: http://127.0.0.1:32991/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:41533
Local directory: /tmp/dask-scratch-space/worker-1mb_7j16

Worker: 3

Comm: tcp://127.0.0.1:37021	Total threads: 1
Dashboard: http://127.0.0.1:46013/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:40795
Local directory: /tmp/dask-scratch-space/worker-pch3j16o

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)